Rapid purifying agent for urban black and odorous water body

Abstract

The invention belongs to the technical field of water environment treatment and relates to a sewage purifying agent. An urban sewage rapid purifying agent is composed of 0.1-25 parts of boron-iron-aluminum polysilicate, 2-10 parts of calcium peroxide, 1-10 parts of magnesium peroxide, 1-15 parts of aluminum ferric polysilicate, 1-10 parts of polyacrylamide, 1-10 parts of ployferric sulfate, 1-15 parts of calcium nitrate, 1-3 parts of sodium silicate and 1-2 parts of polyferric chloride. The agent provided by the invention has the advantages that pH after hydration can be controlled to be 7.5-9.5, and tight composite mineralized sediments which are provided with sustained release oxygen and are mainly calcium silicate, magnesium silicate, aluminum silicate, calcium aluminosilicate and aluminosilicic acid can be gradually formed. Therefore, suspending particular matters and various kinds of harmful impurities in sewage can be rapidly settled, sustained release and oxygenation functions on mud at the water bottom can be realized, bottom mud with a tight structure also can be formed after settlement, and the sewage purifying agent can be applied to treatment of printing and dyeing wastewater, urban polluted landscape water and urban inland river black and odorous water.

Description

technical field [0001] The invention belongs to the technical field of water environment treatment and relates to a sewage purifying agent. Background technique [0002] my country is a country with scarce water resources, the total amount is insufficient, the temporal and spatial distribution is uneven, and the pollution is relatively serious. There are many factors that cause the shortage of water resources in our country, such as the serious waste of water resources, the aggravation of water resource pollution, and the imperfect management system of water resources. my country's water resource pollution is also mainly manifested in the fact that rivers are continuously discharged into sewage, waste oil, waste liquid, chemicals and other pollutants, surface water and groundwater have been seriously polluted, rivers and ponds around towns are black and smelly Pollutants not only affect the appearance of the city and produce odor, but also cause harm to the human body throug...

AI Technical Summary

Problems solved by technology

[0004] The flocculants disclosed in the above-mentioned patents do not have the function of slow-release and oxygen-increa